Application of high flow water filter cartridges in the oil and gas industry

I. Industry Operating Requirements Background: 

The oil and gas industry uses a large amount of water throughout its entire process, from upstream extraction, oil and gas gathering and 

transportation, and water treatment, to midstream pipeline transportation and refining, and finally to downstream utilities (formation reinjection 

water, production wastewater, circulating cooling water, boiler feedwater, instrument flushing water, and fire-fighting water). Water bodies generally 

contain silt, corrosion products, suspended solids, colloids, and trace amounts of crude oil. Traditional low-flow filter cartridges require frequent 

replacements and incur high downtime maintenance costs. High flow water filter cartridges, on the other hand, offer high single-cell throughput, 

small footprint, and fewer replacements, making them ideal for large-volume water pretreatment and fine filtration scenarios in oil and gas plants.

High flow filter cartridge features: 

Single-cell flow rate up to 10-50 m³/h, external inlet/internal outlet structure, pleated filter media, large dirt holding capacity, compatible with vertical 

high-flow security filters, suitable for long-term operation of continuous oil and gas plants.

II. Upstream Oil and Gas Exploration Sector (Oilfields, Gas Fields):

1. Oilfield Reinjection Water Filtration: 

After pretreatment, produced wastewater requires fine filtration before being injected into the underground oil reservoir to prevent formation 

blockage and reservoir damage.

- Function: High flow filter cartridge can remove suspended solids, emulsified oil, and corrosive scale from the water; controls injection water 

quality indicators (oil content, median suspended solids particle size).

- Filtration Location: A safety filter at the injection station, placed after the settling tank and walnut shell/fiber ball filter, serving as terminal 

protection; protects the injection pump, wellhead throttle, and perforation channels from blockage.

- Precision Selection: 1μm～5μm high-flow-rate pleated water filter cartridge.

2. Fracturing Fluid Preparation Water Filtration: 

Hydraulic fracturing requires the preparation of large quantities of guar gum/slickwater fracturing fluid, primarily sourced from surface water and 

produced water.

- Purpose: High flow filter cartrdgie can filter impurities from the water source to prevent blockage of proppant pores, downhole tools, 

and perforation sections; ensures the viscosity stability of the fracturing fluid.

- Operating Conditions: Instantaneous high flow rate, short-term high-intensity filtration, suitable for high-flow filter cartridges to reduce the 

number of equipment units.

3. Gas Field Produced Water/Condensate Treatment: 

Natural gas extraction is accompanied by formation water and condensate, containing salt, suspended solids, and light hydrocarbons; high flow 

filter cartridges are used for pretreatment to reduce the load on subsequent biochemical and membrane systems and protect downstream reverse 

osmosis units.

III. Midstream: Long-distance oil and gas pipelines, compressor stations, and LNG terminals:

1. Terminal circulating cooling water filtration: 

Compressors, pump sets, and air coolers rely on circulating water for cooling; high flow filter cartridges remove sediment and rust from pipelines, 

preventing scale buildup and blockage in heat exchangers, reducing heat exchange efficiency, and minimizing downtime for maintenance.

2. Boiler feedwater and softened water safety filtration: 

Terminals have their own steam boilers; high flow filter cartridges act as pre-filters for raw water/softened water, protecting the boiler and preventing 

scale buildup and tube rupture.

3. Instrument flushing water and fire-fighting water supply filtration: 

High flow filter cartridges ensure clean instrument cleaning water, preventing fine particles from abrading precision valves and flow meters.

IV. Downstream Refining, Petrochemical, and LNG Liquefaction Plants:

1. Security Filtration for Circulating Cooling Water Systems: 

High flow filter cartridges serve as side-channel/security filters for the plant's large-volume circulating water, controlling turbidity and 

protecting heat exchangers and air-cooled tube bundles.

2. Pre-filter Protection for Reverse Osmosis/EDI Pure Water Systems: 

High flow water filter cartridges are used as security filters before the RO membrane in boiler feedwater and process pure water preparation in 

refining and chemical units to intercept colloids and particulate matter, extending the life of the reverse osmosis membrane (typical accuracy: 5μm).

3. Filtration of Process Flushing Water and Equipment Cleaning Water: 

High flow filter cartridges are also used for filtration of water used for reactor, storage tank, and pipeline maintenance and cleaning to reduce 

secondary impurity contamination.

V. Equipment and Material Selection (Special Requirements for the Oil and Gas Industry):

1. Filter Media: Polypropylene (PP) (acid and alkali resistant, cost-effective); PES or PTFE chemical-resistant materials are selected for special 

operating conditions.

2. End Caps/Frames: Polypropylene, glass-reinforced PP; stainless steel supports are selected for seawater/high-corrosion conditions.

3. Seals: EPDM (ethylene propylene diene monomer) rubber (water resistant, resistant to mild oil and gas media).

4. Filter Housing: Corrosion-resistant carbon steel / 304/316L stainless steel high-flow-rate security filter.

5. Common Accuracy: 1μm, 3μm, 5μm, 10μm, 20μm, 50μm;

6. Advantages Compared to Small Meltblown Filter Cartridges:

- Requires over 70% fewer filter cartridges for the same water volume treated.

- Less labor time for replacing consumables, suitable for offshore platforms and remote oil fields (where labor costs are extremely high).

- Reduces the generation of hazardous waste filter cartridges, lowering environmental disposal costs.

VI. Typical Process Flow (Example of Oilfield Reinjection Water): 

Produced Water → Sedimentation and Oil Removal → Walnut Shell Fiber Filter → Fiber Ball Filter → High-Flow Security Filter (High-Flow Water 

Filter Cartridge) → Water Injection Booster Pump → Formation Reinjection

VII. Summary of Usage Value:

1. Protects oil reservoirs and downhole equipment, reducing oilfield production and maintenance costs;

2. Protects expensive equipment such as high-pressure pumps, reverse osmosis membranes, and heat exchangers;

3. Reduces the frequency of filter replacement, minimizing maintenance and downtime losses at oil and gas field sites;

4. The equipment has a smaller footprint, making it particularly suitable for offshore platforms and skid-mounted modular oil and gas processing 

units.

VIII. Common models:

HFU620UY010J

HFU640UY003J

HFU640UY005J

HFU640UY010J

HFU640UY020J

HFU660UY001J

HFU660UY005J

HFU660UY010J

HFU640HDC200J

HFU660HDC005J

RCP001-40EPP

RCP005-40EPP

RCP010-40EPP

RCP020-40EPP

RCP005-60EPP

RCP010-60VPP

MFAP010-40E

MFAP050-40E

MFAP100-40E

MFAP200-60E

MFAP050-60V

HF40PP001B01

HF40PP005B01

HF40PP010B01

HF40PP025C01

HF60PP001C01

HF60PP005A01

HF60PP010C01

HF60PP040D01

HF60PP070B01

XF-001-40-EP

XF-005-40-EP

XF-010-40-EP

XF-005-60-EP

XF-020-60-VN

UFP-005-40

UFP-010-40

UFP-005-60

ALN05-60B